The following are known Action Replay Codes for Chessmaster on Nintendo Game Boy Advance (GBA).

These are Action Replay Version 3 (V3) Codes.

The codes should work with the region specified but may work for other regions as well.

(m)
5095f7aa
4d81c094
a10598a7
b1451a26

Timer P1 0
3f9f3fa3
d69e16ac

Slo-mo on button
dbba3a89
4cb74b94